Project manager for a new global service

You are the project manager for a new global service. You are in the process of building out your communication strategy and identify that you currently have 3 team members, 1 business sponsor, 1 executive sponsor, 2 business analysts, and a compliance manager.  How many communication channels are needed for this project? Six months into the project, your stakeholder community increases by 2 team members and 3 IT partners. How many communication channels are added to the project communication strategy?